Merge branch '2023-02-07-Kconfig-cleanup-dead-code-removal'

To quote the author:
This series adds source scanning to moveconfig.py so that it can look
for Kconfig options mentioned in the source which do not appear in
Kconfig, and vice versa.

This tool is then used to clean up the unused or obsolete options
mentioned in Makefiles, along with any attached source code.

1 files changed, 0 insertions, 329 deletions

diff --git a/drivers/rtc/ds1302.c b/drivers/rtc/ds1302.c
deleted file mode 100644
index 189607c3e02..00000000000
--- a/drivers/rtc/ds1302.c
+++ /dev/null
@@ -1,329 +0,0 @@
-/*
- * ds1302.c - Support for the Dallas Semiconductor DS1302 Timekeeping Chip
- *
- * Rex G. Feany <rfeany@zumanetworks.com>
- *
- */
-
-#include <common.h>
-#include <command.h>
-#include <rtc.h>
-#include <linux/delay.h>
-
-/* GPP Pins */
-#define DATA		0x200
-#define SCLK		0x400
-#define RST		0x800
-
-/* Happy Fun Defines(tm) */
-#define RESET		rtc_go_low(RST), rtc_go_low(SCLK)
-#define N_RESET		rtc_go_high(RST), rtc_go_low(SCLK)
-
-#define CLOCK_HIGH	rtc_go_high(SCLK)
-#define CLOCK_LOW	rtc_go_low(SCLK)
-
-#define DATA_HIGH	rtc_go_high(DATA)
-#define DATA_LOW	rtc_go_low(DATA)
-#define DATA_READ	(GTREGREAD(GPP_VALUE) & DATA)
-
-#undef RTC_DEBUG
-
-#ifdef RTC_DEBUG
-#  define DPRINTF(x,args...)	printf("ds1302: " x , ##args)
-static inline void DUMP(const char *ptr, int num)
-{
-	while (num--) printf("%x ", *ptr++);
-	printf("]\n");
-}
-#else
-#  define DPRINTF(x,args...)
-#  define DUMP(ptr, num)
-#endif
-
-/* time data format for DS1302 */
-struct ds1302_st
-{
-	unsigned char CH:1;		/* clock halt 1=stop 0=start */
-	unsigned char sec10:3;
-	unsigned char sec:4;
-
-	unsigned char zero0:1;
-	unsigned char min10:3;
-	unsigned char min:4;
-
-	unsigned char fmt:1;		/* 1=12 hour 0=24 hour */
-	unsigned char zero1:1;
-	unsigned char hr10:2;	/* 10 (0-2) or am/pm (am/pm, 0-1) */
-	unsigned char hr:4;
-
-	unsigned char zero2:2;
-	unsigned char date10:2;
-	unsigned char date:4;
-
-	unsigned char zero3:3;
-	unsigned char month10:1;
-	unsigned char month:4;
-
-	unsigned char zero4:5;
-	unsigned char day:3;		/* day of week */
-
-	unsigned char year10:4;
-	unsigned char year:4;
-
-	unsigned char WP:1;		/* write protect 1=protect 0=unprot */
-	unsigned char zero5:7;
-};
-
-static int ds1302_initted=0;
-
-/* Pin control */
-static inline void
-rtc_go_high(unsigned int mask)
-{
-	unsigned int f = GTREGREAD(GPP_VALUE) | mask;
-
-	GT_REG_WRITE(GPP_VALUE, f);
-}
-
-static inline void
-rtc_go_low(unsigned int mask)
-{
-	unsigned int f = GTREGREAD(GPP_VALUE) & ~mask;
-
-	GT_REG_WRITE(GPP_VALUE, f);
-}
-
-static inline void
-rtc_go_input(unsigned int mask)
-{
-	unsigned int f = GTREGREAD(GPP_IO_CONTROL) & ~mask;
-
-	GT_REG_WRITE(GPP_IO_CONTROL, f);
-}
-
-static inline void
-rtc_go_output(unsigned int mask)
-{
-	unsigned int f = GTREGREAD(GPP_IO_CONTROL) | mask;
-
-	GT_REG_WRITE(GPP_IO_CONTROL, f);
-}
-
-/* Access data in RTC */
-
-static void
-write_byte(unsigned char b)
-{
-	int i;
-	unsigned char mask=1;
-
-	for(i=0;i<8;i++) {
-		CLOCK_LOW;			/* Lower clock */
-		(b&mask)?DATA_HIGH:DATA_LOW;	/* set data */
-		udelay(1);
-		CLOCK_HIGH;		/* latch data with rising clock */
-		udelay(1);
-		mask=mask<<1;
-	}
-}
-
-static unsigned char
-read_byte(void)
-{
-	int i;
-	unsigned char mask=1;
-	unsigned char b=0;
-
-	for(i=0;i<8;i++) {
-		CLOCK_LOW;
-		udelay(1);
-		if (DATA_READ) b|=mask;	/* if this bit is high, set in b */
-		CLOCK_HIGH;		/* clock out next bit */
-		udelay(1);
-		mask=mask<<1;
-	}
-	return b;
-}
-
-static void
-read_ser_drv(unsigned char addr, unsigned char *buf, int count)
-{
-	int i;
-#ifdef RTC_DEBUG
-	char *foo = buf;
-#endif
-
-	DPRINTF("READ 0x%x bytes @ 0x%x [ ", count, addr);
-
-	addr|=1;	/* READ */
-	N_RESET;
-	udelay(4);
-	write_byte(addr);
-	rtc_go_input(DATA); /* Put gpp pin into input mode */
-	udelay(1);
-	for(i=0;i<count;i++) *(buf++)=read_byte();
-	RESET;
-	rtc_go_output(DATA);/* Reset gpp for output */
-	udelay(4);
-
-	DUMP(foo, count);
-}
-
-static void
-write_ser_drv(unsigned char addr, unsigned char *buf, int count)
-{
-	int i;
-
-	DPRINTF("WRITE 0x%x bytes @ 0x%x [ ", count, addr);
-	DUMP(buf, count);
-
-	addr&=~1;	/* WRITE */
-	N_RESET;
-	udelay(4);
-	write_byte(addr);
-	for(i=0;i<count;i++) write_byte(*(buf++));
-	RESET;
-	udelay(4);
-
-}
-
-void
-rtc_init(void)
-{
-	struct ds1302_st bbclk;
-	unsigned char b;
-	int mod;
-
-	DPRINTF("init\n");
-
-	rtc_go_output(DATA|SCLK|RST);
-
-	/* disable write protect */
-	b = 0;
-	write_ser_drv(0x8e,&b,1);
-
-	/* enable trickle */
-	b = 0xa5;	/* 1010.0101 */
-	write_ser_drv(0x90,&b,1);
-
-	/* read burst */
-	read_ser_drv(0xbe, (unsigned char *)&bbclk, 8);
-
-	/* Sanity checks */
-	mod = 0;
-	if (bbclk.CH) {
-		printf("ds1302: Clock was halted, starting clock\n");
-		bbclk.CH=0;
-		mod=1;
-	}
-
-	if (bbclk.fmt) {
-		printf("ds1302: Clock was in 12 hour mode, fixing\n");
-		bbclk.fmt=0;
-		mod=1;
-	}
-
-	if (bbclk.year>9) {
-		printf("ds1302: Year was corrupted, fixing\n");
-		bbclk.year10=100/10;	/* 2000 - why not? ;) */
-		bbclk.year=0;
-		mod=1;
-	}
-
-	/* Write out the changes if needed */
-	if (mod) {
-		/* enable write protect */
-		bbclk.WP = 1;
-		write_ser_drv(0xbe,(unsigned char *)&bbclk,8);
-	} else {
-		/* Else just turn write protect on */
-		b = 0x80;
-		write_ser_drv(0x8e,&b,1);
-	}
-	DPRINTF("init done\n");
-
-	ds1302_initted=1;
-}
-
-void
-rtc_reset(void)
-{
-	if(!ds1302_initted) rtc_init();
-	/* TODO */
-}
-
-int
-rtc_get(struct rtc_time *tmp)
-{
-	int rel = 0;
-	struct ds1302_st bbclk;
-
-	if(!ds1302_initted) rtc_init();
-
-	read_ser_drv(0xbe,(unsigned char *)&bbclk, 8);      /* read burst */
-
-	if (bbclk.CH) {
-		printf("ds1302: rtc_get: Clock was halted, clock probably "
-			"corrupt\n");
-		rel = -1;
-	}
-
-	tmp->tm_sec=10*bbclk.sec10+bbclk.sec;
-	tmp->tm_min=10*bbclk.min10+bbclk.min;
-	tmp->tm_hour=10*bbclk.hr10+bbclk.hr;
-	tmp->tm_wday=bbclk.day;
-	tmp->tm_mday=10*bbclk.date10+bbclk.date;
-	tmp->tm_mon=10*bbclk.month10+bbclk.month;
-	tmp->tm_year=10*bbclk.year10+bbclk.year + 1900;
-
-	tmp->tm_yday = 0;
-	tmp->tm_isdst= 0;
-
-	DPRINTF("Get DATE: %4d-%02d-%02d (wday=%d)  TIME: %2d:%02d:%02d\n",
-		tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
-		tmp->tm_hour, tmp->tm_min, tmp->tm_sec );
-
-	return rel;
-}
-
-int rtc_set(struct rtc_time *tmp)
-{
-	struct ds1302_st bbclk;
-	unsigned char b=0;
-
-	if(!ds1302_initted) rtc_init();
-
-	DPRINTF("Set DATE: %4d-%02d-%02d (wday=%d)  TIME: %2d:%02d:%02d\n",
-		tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
-		tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
-
-	memset(&bbclk,0,sizeof(bbclk));
-	bbclk.CH=0; /* dont halt */
-	bbclk.WP=1; /* write protect when we're done */
-
-	bbclk.sec10=tmp->tm_sec/10;
-	bbclk.sec=tmp->tm_sec%10;
-
-	bbclk.min10=tmp->tm_min/10;
-	bbclk.min=tmp->tm_min%10;
-
-	bbclk.hr10=tmp->tm_hour/10;
-	bbclk.hr=tmp->tm_hour%10;
-
-	bbclk.day=tmp->tm_wday;
-
-	bbclk.date10=tmp->tm_mday/10;
-	bbclk.date=tmp->tm_mday%10;
-
-	bbclk.month10=tmp->tm_mon/10;
-	bbclk.month=tmp->tm_mon%10;
-
-	tmp->tm_year -= 1900;
-	bbclk.year10=tmp->tm_year/10;
-	bbclk.year=tmp->tm_year%10;
-
-	write_ser_drv(0x8e,&b,1);           /* disable write protect */
-	write_ser_drv(0xbe,(unsigned char *)&bbclk, 8);     /* write burst */
-
-	return 0;
-}